This Code applies to facilities, technology, inspection and periodic inspection for manufacturing of spring loaded type safety valves (hereinafter referred to as “safety valves”) among safety valves in conformity to the Enforcement Regulation of the High-Pressure Gas Safety Control Act (hereinafter referred to as “Act”), Article 3, No. 5. <Revised on June 29, 2009>
1. General
1.1 Scope
1.2 Validity of Code
1.3 Reference Codes and Standards
1.3.1 Inspection standard for new technology products
1.3.2 Manufacturing registration of foreign safety valves
1.4 Definitions
2. Manufacturing Installation Standard
2.1 Manufacturing Facilities
2.2 Inspection Facilities
3. Manufacturing Technology Standard
3.1 Design (currently not used)
3.2 Materials
3.2.1 Restriction on use of materials
3.3 Thickness (currently not used)
3.4 Construction and Dimensions
3.4.1 Construction
3.5 Fabrication (currently not used)
3.6 Welding (currently not used)
3.7 Heat treatment (currently not used)
3.8 Performance
3.8.1 Product performance
3.8.2 Material performance
3.8.3 Operating performance
3.9 Marking
3.9.1 Product marking
3.9.2 Acceptance marking
4. Inspection Standard
4.1 Kinds of Inspections
4.1.1 Manufacturing installation inspection
4.1.2 Product inspection
4.2 Object Audit of Process Inspection
4.2.1 Application for audit
4.2.2 Audit method
4.2.3 Adjudication committee
4.3 Inspection Items
4.3.1 Manufacturing installation inspection
4.3.2 Product inspection
4.4 Inspection Method
4.4.1 Manufacturing installation inspection
4.4.2 Product inspection
4.5 Other Inspection Standards
4.5.1 Inspection of imported goods (currently not used)
4.5.2 Partial exception from inspection
4.5.3 Disposal of rejected products
5. Re-Inspection Standard
5.1 Re-inspection Items
5.2 Re-inspection Method
5.3 Acceptance marking
5.4 Disposal of rejected products
Appendix A General Standard for Operation of Quality Control System for Safety Valve Manufacturing Plants
